Self-acting blow-pipe lamp



(No Model.)

T. POYSER. SELF ACTING BLOW PIPE LAMP, SOLDERING IRON HEATER, AND PAINTBURNER.

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UNITED Srarns Bartram @FFICE.

THOMAS POYSER, OF SAN FRANCISCO, CALIFORNIA.

SELF-ACTING BLOW-PIPE LAMP, SOLDERING-IRON HEATER, AND PAINT-BURNER.

SPECIFICATION forming part of Letters Patent No. 257,380, dated May 2,1882.

Application filed February 21, 1882. (No model.)

To all whom it may concern:

Be it known that I, THOMAS POYSEB, a citizen of the United States,residing in the city and county of San Francisco, and StateofCalifornia, have invented a new and useful Combined Self-ActingBlow-Pipe Lamp, Soldering Iron Heater, and Paint-Burner, of which thefollowing is a specification.

The nature of my invention consists in the construction, combination,and arrangement of a self-acting blow-pipe, soldering-iron heater, andpaint-burner, and combining the same in a simple and convenient tool orimplement, and will be more clearly understood by reference to theaccompanying drawings and the references marked thereon.

Figure l is an elevation showing the implement complete when the wholeis joined as used in soldering. Fig. 2 is a similar view of the samearranged for paint-burning, or as used as a blow-pipe. Fig. 3 is a planview of the same arranged for the purpose of showing and fullyexplaining the operating parts, and Figs. 4c and 5 are views of detachedparts.

The followingis the construction ofthesamc:

A represents a can or tight vessel of convenient size for handling; B,the wick-tube; (J, the cap; D, the combustion-tube as shown in Fig. 1,for soldering; E, the combustion tube as shown in Fig. 2; F, the recess,and G the jet'perforation. I construct the can A of sheet metal, strongand durable, and the wicktube of gas-pipe, or of any suitable tubing forstrength and durability; and the cap C is the ordinary blind cap forgas-pipe With the recess F and perforation G formed to produce a clearjet or fine solid stream of fluid forced through it. The wick W isplaced in the center of the wick-tube B, extending from the upper end ofthe same to the bottom of the can. The upper portion of the wick-tube Bis packed in around the wick Wwith cotton wickin g or other porous orfibrous substance about half-way down the tube, as shown in thesectional drawing, Fig. 3. The wick and packing do not have to bereplaced after being once placed, as the heat to which they aresubjected does not injuri- In filling the can A the wick-tube B isunscrewed and taken out, and the gasoline is poured in through the holeleft by the removal of the tube.

My reason for not having another opening for filling is that personsmight fill the can while burning, or it might leave a means of escapefor the gas.

The tube B is fitted gas-tight in the can. The combustion-tube used forsoldering and paint-burning is constructed of sheet metal cut in theshape shown in Fig. 5. The notches P in the sides are cut to form adiamond-shaped opening for the supply of oxygen from the air forcombustion, as will be shown. This plate or sheet is rolled to fit thecap of the wicktube and to form the combustion-tube E, as shown in Fig.2. The combustion -tube D (shown in Fig. 1) is either formed by rollingin the same way as just described or in any other suitable way to formthe tube shown, having the two openings 0 and P, Fig. 4b It should bemade firm and solid to form a good setting for the soldering-bit.

The following is the operation of the same: The can A being suppliedwith gasoline or other light burning-fluid, the wick draws the oil upinto the tube B, saturating the packing Vand supplying the cavity orrecess F and the fine perforation G, which, when touched with a match,ignites and burns quietly, gradually heating the combustion-tube D andwick-tube B, which creates pressure by gas forming in the wick-tube andcan, and forces a steadyjet or fine stream through the perforation G, asshown in Fig 2. The jet passing up into the creasing its volume to fillthe combustion-tube and to retain the velocity of the stream or jet. Bythis means a draft through the openings P supplies the necessary oxygenfor complete combustion. The heated column or flame is thrown out fromthree to twelve inches in ordinary operations, like the blaze from apowerful blow-pipe. By adjustingthe combustiontnbe the intensity of theheat is regulated, as by raising the same and leaving a space or chamberbetween the cap C and the lower part of the opening 1 theheat-conducting power is decreased between the flame and the pipe D,thus increasing or decreasing the heat and consequent pressure and blastas required.

When used as a soldering-iron heater the can is operated as beforedescribed, the copper bit extending down into the opening 0 sufticientlyto be surrounded by the heated column or blaze. I The combustion-tubebeing drawn down so as center of the combustion-tube is burned, in-

a clear stream or fine jet of gas at a high velocity, which, expandingas it ignites in the combustion-chamber and continuing its velocity,blows exactly as a blowpipe and heats the copper bit quickly to therequired heat, when it can be regulated by adjusting thecombustion-chamber as has been shown. When used for burning off paintfrom painted surfaces this device presents great advantage in the factthat it may be held so as to throw the flame in any required direction,the whole implement being perfectly portable and as simple andconvenient to handle as anyotherhandtool for soldering or heating, andwhen used in the place of the blow-pipe the flame can be directedperfectly in any required direction without diminishing the force of theblast, as when pointed downward the blast is not at alldiminished,depending wholly upon the velocity ofthe stream injected intothe center of the combustion-tube.

I do not confine myself to any particular dimensions or weight ofmaterial, as in this particular the construction may be varied to suitthe character or magnitude of the heating or soldering to be effected.

Having thus described my invention, What I claim, and desire to secureby Letters Patent, 1s-

1. The can A, having the wick-tube B and cap 0, with open reservoir orrecess F and perforation G, and the wick W and packing V, in combinationwith the combustion-tube E, having the single side opening, P, to use asa portable blow-pipe and heater and burner, substantially as and for thepurposes set forth.

2. The can A, having the wick-tube B and cap 0, with open reservoir orrecess F and perforation G, and the Wick W and packing V, in combinationwith the combustion-tube D, with the two side openings, 0 and P, as usedfor soldering, substantially as and for the purposes set forth.

THOMAS POYSER. Witnesses:

J OHN H. RnDs'roNE, FRANK R. BRAUN.

